One glossary file for multiple book collections

To whom It may concern.

I have tried to add a single Glossary file for multiple book collections, but couldn’t find it working.
I want to make a single glossary file with all words, is there any way to do it?

Humble regards.
Raja Sand

You have to provide one glossary per collection.

Ok dear.
I am doing it but if the single glossary book is made for all collections, it would have been great.